222112221020121 has 8 divisors (see below), whose sum is σ = 296150001478560. Its totient is φ = 148074627287552.

The previous prime is 222112221020111. The next prime is 222112221020167. The reversal of 222112221020121 is 121020122211222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222112221020121 - 2⁷ = 222112221019993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222112221020111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43881960 + ... + 48681113.

It is an arithmetic number, because the mean of its divisors is an integer number (37018750184820).

Almost surely, 2^{222112221020121} is an apocalyptic number.

It is an amenable number.

222112221020121 is a deficient number, since it is larger than the sum of its proper divisors (74037780458439).

222112221020121 is an equidigital number, since it uses as much as digits as its factorization.

222112221020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93362935.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222112221020121 its reverse (121020122211222), we get a palindrome (343132343231343).

The spelling of 222112221020121 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, twenty thousand, one hundred twenty-one".